Thomas Betts 393 Anti-short Bushing Ac Fmc 10-1 Awg

Product Description

The THOMAS BETTS 393 is a plastic anti-short bushing designed to protect conductor insulation from the rough cut edges of armored cable (AC) and flexible metal conduit (FMC). Installed at the termination point where the armor or conduit jacket ends, the bushing fits between the cable armor and the fitting to eliminate contact between sharp metal edges and the wire insulation. It is rated for use with conductors ranging from 10 AWG through 1 AWG and carries a temperature rating of 240 degrees F. Licensed electricians and apprentices install this fitting during rough-in and panel work on commercial and residential jobs.

The 393 bushing is suited for use in both residential and commercial electrical installations wherever armored cable or flexible metal conduit is terminated at enclosures, panels, junction boxes, or device boxes. It addresses a code-required protection method for conductor insulation at armor terminations. The bushing accommodates multiple cable fill configurations, including (4) 10 AWG, (3) 8 AWG, (2) 8 AWG, and (1) 1 AWG conductor arrangements, making it practical across a range of circuit sizes commonly encountered in the field.

Key Features

• Anti-short design protects conductor insulation from sharp armor and conduit edges at terminations
• Smooth plastic construction eliminates metal-to-insulation contact
• Covers conductor sizes from 10 AWG to 1 AWG in multiple fill configurations
• Temperature rated to 240 degrees F for use in warm enclosure environments
• CSA approved for use in applicable installations
• Made in the United States

Compatibility

Designed for use with armored cable and flexible metal conduit terminations accommodating conductor fill configurations of (4) 10 AWG, (3) 8 AWG, (2) 8 AWG, or (1) 1 AWG.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements for armored cable and FMC terminations. De-energize the circuit and verify zero voltage before working at any termination point. Slide the bushing onto the conductors and seat it at the cut end of the armor or conduit jacket before securing the fitting or connector. Inspect the bushing to confirm it is fully seated and that no conductor insulation contacts bare metal edges.

Technical Specifications

• Type: Anti-Short
• Material: Plastic
• Cable Size: (4) 10 AWG, (3) 8 AWG, (2) 8 AWG, (1) 1 AWG
• Temperature Rating: 240 degrees F
• Approval: CSA
• Country of Origin: US
• Package Quantity: 250 per standard package
• Package Weight: 3.750 pounds
• Package Length: 21.5 inches
• Package Height: 3 inches
• Package Width: 4 inches

Standard Information

• Brand: THOMAS BETTS
• Manufacturer Part Number: 393